/*
 *  RenderUtils.java
 *  ARToolKit5
 *
 *  This file is part of ARToolKit.
 *
 *  ARToolKit is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  ARToolKit is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with ARToolKit.  If not, see <http://www.gnu.org/licenses/>.
 *
 *  As a special exception, the copyright holders of this library give you
 *  permission to link this library with independent modules to produce an
 *  executable, regardless of the license terms of these independent modules, and to
 *  copy and distribute the resulting executable under terms of your choice,
 *  provided that you also meet, for each linked independent module, the terms and
 *  conditions of the license of that module. An independent module is a module
 *  which is neither derived from nor based on this library. If you modify this
 *  library, you may extend this exception to your version of the library, but you
 *  are not obligated to do so. If you do not wish to do so, delete this exception
 *  statement from your version.
 *
 *  Copyright 2015 Daqri, LLC.
 *  Copyright 2011-2015 ARToolworks, Inc.
 *
 *  Author(s): Julian Looser, Philip Lamb
 *
 */

package org.artoolkit.ar.base.rendering;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import java.nio.ShortBuffer;

public class RenderUtils {

    public static FloatBuffer buildFloatBuffer(float[] arr) {
		ByteBuffer bb = ByteBuffer.allocateDirect(arr.length * 4);
		bb.order(ByteOrder.nativeOrder());
		FloatBuffer fb = bb.asFloatBuffer();
		fb.put(arr);
		fb.position(0);
		return fb;
	}
    
    public static IntBuffer buildIntBuffer(int[] arr) {
		ByteBuffer bb = ByteBuffer.allocateDirect(arr.length * 4);
		bb.order(ByteOrder.nativeOrder());
		IntBuffer ib = bb.asIntBuffer();
		ib.put(arr);
		ib.position(0);
		return ib;
	}
    
    public static ShortBuffer buildShortBuffer(short[] arr) {
		ByteBuffer bb = ByteBuffer.allocateDirect(arr.length * 2);
		bb.order(ByteOrder.nativeOrder());
		ShortBuffer sb = bb.asShortBuffer();
		sb.put(arr);
		sb.position(0);
		return sb;
	}
    
    public static ByteBuffer buildByteBuffer(byte[] arr) {    	
    	ByteBuffer bb = ByteBuffer.allocateDirect(arr.length);
    	bb.put(arr);
    	bb.position(0);
    	return bb;    	
    }
	
	
}
